--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/imgvwr/inc/glxivwrappui.h	Wed Sep 01 12:33:26 2010 +0100
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). 
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description: Image Viewer AppUi class 
+ *
+ */
+
+
+
+
+#ifndef C_GLXIVIEWERAPPUI_H
+#define C_GLXIVIEWERAPPUI_H
+
+#include <aknViewAppUi.h>
+#include <mglxnavigationalstateobserver.h>
+#include <mpxcollectionpath.h>
+#include <mglxcache.h>
+
+class MMPXViewUtility;
+class CGlxUiUtility;
+class CGlxNavigationalState;
+
+/**
+ *  CGlxIVwrAppUi
+ *
+ *  @lib ViewerApplication
+ */
+
+class CGlxIVwrAppUi : public CAknViewAppUi,
+        public MGlxNavigationalStateObserver
+    {
+public:
+    CGlxIVwrAppUi();
+    void ConstructL();
+    ~CGlxIVwrAppUi();
+    /**
+     * Open the viewer on receving OpenFileL() callback in CViewerDocument
+     */
+    void HandleOpenFileL();
+
+public:
+    // from CAknAppUi
+    /**
+     * From CAknAppUi
+     * Handle user menu selections
+     * @param aCommand Id of the command
+     */
+    void HandleCommandL(TInt aCommand);
+
+    // From MGlxNavigationalStateObserver
+    void HandleNavigationalStateChangedL();
+    
+    //OOM Method
+    void HandleApplicationSpecificEventL(TInt aEventType,
+            const TWsEvent& aWsEvent);
+
+protected:
+    // From CEikAppUi
+    void OpenFileL(const TDesC& aFileName);
+
+    TBool ProcessCommandParametersL(TApaCommand aCommand,
+            TFileName& aDocumentName, const TDesC8& aTail);
+
+private:
+    enum TEntryType
+        {
+        EEntryTypeStartUp = 0,
+        EEntryTypeFocusGained
+        };
+    /**
+     * Get view scoring ids based on current navigational state
+     * (using Get in the name since the function does not return anything)
+     * @param aIns list that will be populated with scoring ids
+     */
+    void GetViewScoringIdsL(RArray<TUid>& aIds) const;
+
+    /**
+     * Get view scoring id for collection plugin
+     * @param naviState Path to represent navigational state
+     * @return scoding id
+     */
+    TUid GetViewScoringIdForCollectionPlugin(
+            const CMPXCollectionPath& aNaviState) const;
+
+    /**
+     * Get view scoring id for depth in ui hierarchy
+     * @param naviState Path to represent navigational state
+     * @return scoding id
+     */
+    TUid ViewScoringIdForNaviStateDepth(
+                    const CMPXCollectionPath& aNaviState) const;
+
+    /**
+     * Requesting OOM to Free Some Memory, so that photos image viewer can start
+     * @return Error if Memory Cannot be freed else Error None
+     */
+    TInt OOMRequestFreeMemoryL(TInt aBytesRequested);
+
+    /**
+     * Finds Current Memory Availability And Decides to Send a Request for freeing the memory 
+     * @param aCriticalMemoryRequired Bare Minimum to start photos image viewer
+     * @return Error Code from OOM
+     */
+    TInt ReserveMemoryL(TInt aCriticalMemoryRequired);
+
+    /**
+     * Finds Current Minimum Required memory to start photos image viewer
+     * @param Type of application invokation 
+     * @return Required Critical Memory
+     */
+    TInt RamRequiredInBytesL(TEntryType aType);
+
+    /**
+     * Reserve critical memory qequired to start photos image viewer
+     * @param Type of application invokation 
+     */
+    void ReserveMemoryL(TEntryType aType);
+
+    /**
+     * Close Image Viewer App.
+     */
+    void CloseImgVwr();
+
+private:
+    /// MPX View Utility
+    MMPXViewUtility* iViewUtility;
+
+    /// Image Viewer's Navigational State
+    CGlxNavigationalState* iNavigationalState;
+
+    /// Optional view plugin UID to activate when the collection is opened
+    TUid iStartupViewUid;
+
+    /// Ui Utility
+    CGlxUiUtility* iUiUtility;
+    };
+
+
+#endif // C_GLXIVIEWERAPPUI_H
+